Alright everyone! Because no one had any answer I decided to do some at home testing! Using a 100% White silicon (from ace... 2.50 a tube... couldn't say no) I laid down two small beads across a sheet of acrylic. One as a test, the other as the control. I added a small amount of brown water based, non toxic pigment to one of the beads and mixed. I also mixed the control but without anything added. Just to make sure they both were being treated the exact same way. 21 hours later I checked on my little test to find they both dried the EXACT same way. Same consistence, same strength, everything the same. I am about to head to work. I am placing both tests in two different containers of water to make sure the pigment wont leach or hurt the bond of the silicon. Ill let you know around 11pm.